LATITUDE 9410 LA-J541P

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LATITUDE 9410 LA-J541P
COMPAL LA-J541P R10.pdf
Schematics

Screenshot 2025-04-29 at 1.51.54 PM.png
 

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This laptop had broken PD controller TPS65988 - it was heating up to 80 degrees. After changing it to new IC (2 new ones) I don't have 20V, only 5V from USB-C power supply. Someone told me that the problem is with firmware:

Firmware. This is a stand alone power delivery controller that must be fitted with firmware to communicate over the CCx pins (1-wire per side) with the power source (your USB-C adapter) to request the PD contracts and then this controller will select the best one to power your load = your laptop.
It is most likely the EC that is required to configure this PD controller with the firmware which will then negotiate the 20v PD contract.
 
This laptop had broken PD controller TPS65988 - it was heating up to 80 degrees. After changing it to new IC (2 new ones) I don't have 20V, only 5V from USB-C power supply. Someone told me that the problem is with firmware:
Unavailable firmware this
 

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